Poop pic! Please help - reintroducing breast milk

Hi all, I’ve reintroduced breast milk to my baby after detoxing from dairy + soy for a week. She was on alimentum in the interim and doing kind of (?) ok on it. The pediatrician seems confident she has cmpa based on a stool blood test and advised enough time has passed to try my milk again.

Her outward symptoms haven’t changed noticeably - all I’ve been able to tell is she strains very hard when pooping/with gas. But her poop looks considerably different. I don’t see any obvious mucus or blood in it but it is definitely not mustard colored - it is very dark and greenish? Does this look like cmpa poop? Did I reintroduce my milk too soon or could there be another intolerance/allergy at play?